Vitamin E

A small number of trials have tested vitamin E taken around the time of the period and reported less period pain compared with placebo, but studies are small and the evidence is limited. Vitamin E is a fat-soluble vitamin and high doses can increase bleeding risk. See a clinician for severe or worsening pain.

People with period pain who want to discuss options with a clinician. Whether it suits you depends on your health, medicines and test results — ask a clinician.

Studies have used about 400–500 IU daily for a few days around the period. The NIH upper limit for adults is 1,000 mg per day (about 1,500 IU of natural vitamin E). Doses vary by product and person; this is not personal medical advice.

Studies measured effects over 2–4 menstrual cycles.

Nausea, stomach upset, headache; high doses increase bleeding risk.

Use caution with blood thinners and before surgery. Do not exceed label doses.

Evidence level (our editorial summary, not a formal grading): Limited.

Pregnancy & breastfeeding: High-dose vitamin E is not advised in pregnancy without medical guidance.

Medication interactions: High doses may increase bleeding risk with blood thinners and antiplatelet medicines.

Talk to a healthcare professional before use if you are pregnant, breastfeeding, planning pregnancy, have a medical condition, take any medicine, or are scheduled for surgery. Dietary supplements are not approved by the FDA for safety or effectiveness before they are sold, and quality varies between products.

Reliable sources to check: NIH Office of Dietary Supplements fact sheets · NCCIH Herbs at a Glance · MedlinePlus Herbs & Supplements · FDA — Dietary Supplements